anolan23
Mechanical
- Apr 29, 2015
- 54
We're doing extruded outlets instead of a pipe to pipe saddle weld now. From what I gathered, ASME B31.3 Paragraph 304.3.4 is the only paragraph that I need to use for calculations. Those are reinforcement calculations.
The extrusion process thins the pipe at the saddle and stirrup a little, but after pulling some samples I noticed that around the collar is where the most thinning occurs. I'm trying to figure out if the saddle/stirrup thickness after extrusion should be compared to run pipe required design thickness (304.1.2) OR if the thinning around the collar should be compared to run pipe required design thickness.
![URL]](https://res.cloudinary.com/engtips/image/fetch/w_800,c_lfill,q_auto,f_auto,g_faces:center/[URL unfurl="true"]http://oi65.tinypic.com/20i9cep.jpg[/URL])
The extrusion process thins the pipe at the saddle and stirrup a little, but after pulling some samples I noticed that around the collar is where the most thinning occurs. I'm trying to figure out if the saddle/stirrup thickness after extrusion should be compared to run pipe required design thickness (304.1.2) OR if the thinning around the collar should be compared to run pipe required design thickness.
